package com.pcj.blog.web.admin;/**
 * @param
 * @author pcj
 * @date 2021/12/28 13:55
 * @return
 */

import com.pcj.blog.po.Type;
import com.pcj.blog.service.TypeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.web.PageableDefault;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.validation.Valid;

/**
 *
 * @className TypeController
 * @author pengcj
 * @date 2021/12/28 13:55
 */
@Controller
@RequestMapping("/admin")
public class TypeController {
    @Autowired
    private TypeService typeService;
    @GetMapping("/types")
    public String types(@PageableDefault(size=5,sort={"id"} ,direction = Sort.Direction.DESC)
                                    Pageable pageable, Model model){
        model.addAttribute("page",typeService.listType(pageable));
        System.out.println(typeService.listType(pageable));
        return "admin/types";
    }

    @GetMapping("/types/input")
    public String  input(Model model){
        model.addAttribute("type",new Type() );
        return "admin/type-input";
    }
    @PostMapping("/types")
    public String addtype(@Valid Type type, BindingResult bindingResult, RedirectAttributes attributes){
        Type type1=typeService.getTypeByName(type.getName());
        if(type1!=null){
            bindingResult.rejectValue("name","nameError","该分类已存在，不可重复添加");
        }
        if(bindingResult.hasErrors()){
            return "admin/type-input";
        }
        Type t=typeService.saveType(type);
        if(t==null){
            attributes.addFlashAttribute("message","新增失败");
        }else{
            attributes.addFlashAttribute("message","新增成功");
        }
        return "redirect:/admin/types";
    }
    @GetMapping("types/{id}/input")
    public String editInput(@PathVariable  Long id, Model model){ //@PathVariable可以拿到路径中的参数，通过id找到当前要编辑的对象，并把这个对象推到前端
        model.addAttribute("type",typeService.getTypebyId(id));
        return "admin/type-input";
    }

    @PostMapping("/types/{id}")
    public String edittype(@Valid Type type, BindingResult bindingResult,@PathVariable Long id ,RedirectAttributes attributes){
        Type type1=typeService.getTypeByName(type.getName());
        if(type1!=null){
            bindingResult.rejectValue("name","nameError","该分类已存在，不可重复添加");
        }
        if(bindingResult.hasErrors()){
            return "admin/type-input";
        }
        Type t=typeService.updateType(id,type);
        if(t==null){
            attributes.addFlashAttribute("message","修改失败");
        }else{
            attributes.addFlashAttribute("message","修改成功");
        }
        return "redirect:/admin/types";
    }

    @GetMapping("/types/{id}/delete")
    public String delete(@PathVariable Long id,RedirectAttributes redirectAttributes){
            typeService.deleteType(id);
        redirectAttributes.addFlashAttribute("message","删除成功");
        return "redirect:/admin/types";
    }
}
